Postal Codes

07830 ZIP Code

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ZIP code 07830 covers Califon, New Jersey, with a population of about 7,451 and a median household income of $181,023.

Population
7,451286 per square mile
Median age
50.611.9 points above the US average
Median household income
$181,0231.8× the New Jersey median
Poverty rate
1.9%10.5 points below the US average
Typical home value
$783,340up 31.1% in five years
Median rent
$1,7711.1× the New Jersey median
Degree or higher
64.4%29.4 points above the US average
Homeownership
95.3%30.3 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
181

Where 07830 is

Califon, New Jersey — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population7,451
Median age50.6
Family households85.5%
Born outside the US8.3%
Speaks a language other than English at home15.4%
White (non-Hispanic)84.1%
Black (non-Hispanic)5.4%
Asian (non-Hispanic)1.6%
Hispanic or Latino6.9%
Veterans6.6%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$181,023
Income per person$75,894
Poverty rate1.9%
Households on SNAP or cash assistance3.6%

Household income distribution

Under $10k1.1%
$10–15k0.6%
$15–20k0.7%
$20–25k1.0%
$25–30k1.0%
$30–35k1.1%
$35–40k0.3%
$40–45k1.5%
$45–50k0.0%
$50–60k3.3%
$60–75k11.2%
$75–100k4.4%
$100–125k8.3%
$125–150k6.3%
$150–200k21.3%
$200k or more38.1%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed3,250
Mean adjusted gross income$196,782
Returns declaring $200,000 or more26.8%
Returns, under $25k18.8%
Returns, $25k–$50k12.0%
Returns, $50k–$75k9.5%
Returns, $75k–$100k8.0%
Returns, $100k–$200k24.9%
Returns, $200k or more26.8%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$622,400
Median gross rent$1,771
Rent as a share of household income41.6%
Owner-occupied95.3%
Vacant homes0.6%
Median year built1973

What the homes are

Detached house97.4%
Attached house0.3%
2 to 4 units1.3%
5 to 19 units1.1%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$783,340as of 2026-07
Typical home value, 1 yearup 4.1%
Typical home value, 5 yearsup 31.1%
Typical home value, 10 yearsup 57.4%
Typical home value since 2000
200020132026$783,340$331,589

$331,589 in 2000 to $783,340 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate4.8%
Bachelor's degree or higher64.4%
High school diploma or higher98.1%
Works from home21.9%
Drives to work alone69.2%
Takes public transport1.3%
Commutes 45 minutes or more30.1%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity25.7% 7.7 pts below the national average of 33.4%
Diagnosed diabetes8.9% 3.1 pts below the national average of 12%
Currently smokes8.4% 4.8 pts below the national average of 13.2%
High blood pressure31.9% 2.2 pts below the national average of 34.1%
Fair or poor general health12.5% 7.8 pts below the national average of 20.3%
No health insurance (18–64)5.3% 6 pts below the national average of 11.3%
Depression16.8% 5.1 pts below the national average of 21.9%
No leisure-time physical activity17.5% 7.9 pts below the national average of 25.4%
Arthritis25.2% same as the national average of 25.1%
Binge drinking16.8% 0.8 pts above the national average of 16%
Taking blood pressure medication79.1% 4.4 pts above the national average of 74.7%
Cancer (non-skin)10.4% 2.7 pts above the national average of 7.7%
Current asthma9% 1.4 pts below the national average of 10.4%
Coronary heart disease5.6% 0.6 pts below the national average of 6.2%
Routine check-up in past year79.8% 3.1 pts above the national average of 76.7%
Cholesterol screening92.1% 6.2 pts above the national average of 85.9%
Cognitive disability9.1% 5.7 pts below the national average of 14.8%
Colorectal screening71.3% 7 pts above the national average of 64.3%
COPD4.7% 1.9 pts below the national average of 6.6%
Visited a dentist75.6% 14.3 pts above the national average of 61.3%
Any disability21.3% 9.4 pts below the national average of 30.7%
Lacks emotional support18.8% 6 pts below the national average of 24.8%
Food insecurity6.4% 10.7 pts below the national average of 17.1%
Received food stamps3.4% 10.9 pts below the national average of 14.3%
Hearing disability5.7% 1 pts below the national average of 6.7%
High cholesterol40.7% 4.5 pts above the national average of 36.2%
Housing insecurity6.1% 7.7 pts below the national average of 13.8%
Independent living disability5.1% 3.3 pts below the national average of 8.4%
Lacks transport4.2% 5 pts below the national average of 9.2%
Loneliness30% 4.4 pts below the national average of 34.4%
Mammography use76.7% 0.8 pts above the national average of 75.9%
Poor mental health (14+ days)13.1% 3.7 pts below the national average of 16.8%
Mobility disability9.2% 4.8 pts below the national average of 14%
Poor physical health (14+ days)10.9% 2.6 pts below the national average of 13.5%
Self-care disability2.4% 1.6 pts below the national average of 4%
Utility shut-off threat3.8% 5 pts below the national average of 8.8%
Sleeps under 7 hours31% 5.4 pts below the national average of 36.4%
Stroke2.7% 0.7 pts below the national average of 3.4%
All natural teeth lost4% 9 pts below the national average of 13%
Vision disability3% 2.6 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments181
People employed936
Annual payroll$56,263,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 74.2% of US census tracts
FEMA ratingRelatively Low to Relatively High across the 3 census tracts this ZIP code covers
Expected annual loss84.4 out of 100
Community resilience90.2 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Strong wind92.6Very High at its worst in this ZIP code
Drought92Relatively Moderate at its worst in this ZIP code
River flooding89.8Very High at its worst in this ZIP code
Landslide87Relatively Low at its worst in this ZIP code
Winter weather86.3Relatively High at its worst in this ZIP code
Ice storm82.1Relatively High at its worst in this ZIP code
Lightning70.5Relatively High at its worst in this ZIP code
Hurricane70.3Relatively Low at its worst in this ZIP code
Wildfire66.1Relatively Low at its worst in this ZIP code
Earthquake61.7Relatively Low at its worst in this ZIP code
Heat wave59.6Relatively Moderate at its worst in this ZIP code
Tornado52.6Relatively Moderate at its worst in this ZIP code
Cold wave52.5Relatively Moderate at its worst in this ZIP code
Hail39.1Relatively Low at its worst in this ZIP code
Compared with New Jersey and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPNew JerseyUnited States
Median household income$181,023$101,050$78,538
Income per person$75,894$53,118$43,289
Poverty rate1.9%9.8%12.4%
Median home value$622,400$427,600$303,400
Median gross rent$1,771$1,653$1,348
Homeownership95.3%63.7%65%
Bachelor's degree or higher64.4%42.9%35%
Unemployment rate4.8%6.2%5.2%
Works from home21.9%15%13.5%
Born outside the US8.3%23.5%13.9%
Median age50.640.138.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationSOMERVILLE SOMERSET AP, NJ US16 km away
Rain in a year45 in

Average high and low by month

January39.3°F / 20.6°F3.16 in rain
February42.8°F / 22.3°F2.2 in rain
March50.7°F / 29.5°F3.89 in rain
April63.1°F / 38.9°F3.59 in rain
May73°F / 48.2°F3.54 in rain
June81.4°F / 57.6°F4.23 in rain
July86.2°F / 63°F4.93 in rain
August84.3°F / 61.3°F5.18 in rain
September77.7°F / 53.8°F3.82 in rain
October65.9°F / 42.1°F3.67 in rain
November54.9°F / 32.9°F3.41 in rain
December44.1°F / 26.2°F3.87 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarket18% of this ZIP code's area
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 6 school districts, so the address decides which one, not the ZIP code.

North Hunterdon-Voorhees Regional School District40.9% of this ZIP code's land area
Tewksbury Township School District26.1% of this ZIP code's land area
Lebanon Township School District12.9% of this ZIP code's land area
Washington Township School District9.1% of this ZIP code's land area
West Morris Regional School District9.1% of this ZIP code's land area
Califon Borough School District1.8% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability5more vulnerable than 5% of US census tracts
Socioeconomic status5more vulnerable than 5% of US census tracts
Household characteristics14more vulnerable than 14% of US census tracts
Racial and ethnic minority status17more vulnerable than 17% of US census tracts
Housing type and transport16more vulnerable than 16% of US census tracts
Walkability6.3 out of 20Below average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

08858 Oldwick, NJ7.5 km away
07979 Pottersville, NJ7.5 km away
08833 Lebanon, NJ7.8 km away
07853 Long Valley, NJ8.3 km away
08829 High Bridge, NJ8.5 km away
08826 Glen Gardner, NJ8.5 km away
07870 Schooleys Mountain, NJ9.2 km away
07831 Changewater, NJ11.2 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Hunterdon County81.8% of this ZIP code's land area
Morris County18.2% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area26.02 sq mi
Water area0.18 sq mi
Population density286 people per sq mi
Latitude, longitude40.7162, -74.8152

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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